I'm glad to hear the standrd itself is correct. The only thing I would still like to know is the mapping of the two USB ports. So, which superspeed wires correspond to which usb 2.0 wires?
Julius Lehmann On Feb 5, 2017, 22:52, at 22:52, Luke Kenneth Casson Leighton <[email protected]> wrote: >--- >crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 > >On Sun, Feb 5, 2017 at 9:30 PM, Internet <[email protected]> wrote: > >> Regarding USB C you are right that there are four differential pairs >on >>> the connector. However, for communication only two pairs are used >because >>> the USB 3.1 protocol only uses two. On the device that has a USB C >>> connector you need a dedicated controller that manages the >orientation of >>> the plug. Then the two data lines are connected to the right pins on >the >>> connector through a multiplexer. The other two pairs on the >connector are >>> for no use in USB mode but if you want to use USB C in alternate >mode (e.g. >>> DisplayPort), signals can be rerouted. >>> >>> You can find all the information on usb.org >>> ><http://t224.mjt.lu/lnk/AEUAHWykN94AAAAAAAAAAGbE2wkAASHlFNUAAAAAAAZHgABYl5lfeaEfW2hMTR63ZGLMHX5RrAAGAjk/1/ZviPu0ichkU-Gm4llF2oBw/aHR0cDovL3VzYi5vcmc> >>> (zip archive with full specification). >>> >>> This basically means that the EOMA68 standard has two differential >pairs >>> that are not used for USB but if your intention was to make it >available >>> for USB C, an internal multiplexer would be needed. >>> >>> > argh! no, it was a misunderstanding. ha. very funny. it means i >accidentally made room for 4 extra wires... which could be used to >upgrade >the *second* USB port to USB3.1 as well. > >that's frickin hilarious. > >l. > > >------------------------------------------------------------------------ > >_______________________________________________ >arm-netbook mailing list [email protected] >http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook >Send large attachments to [email protected]
_______________________________________________ arm-netbook mailing list [email protected] http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook Send large attachments to [email protected]
